The conventional antidysrhythmic agents for the
abolition of atrial fibrillation or atrial tachycardia
are not contraindicated in pregnancy and can be
used with success (Szekely and Snaith, I953). Direct
current shock has also been safely used in pregnancy
(Vogel, Pryor, and Blount, I965; Schroeder and
Harrison, I97I). The indications for these procedures
are similar to those in the non-pregnant
patient.